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Installation
External fan
Variable speed motors with frequency
converter
Stroke length actuators / control drives
Diaphragm rupture sensor (Option)
30
CAUTION!
Provide a separate power supply for the external fan for
motors with external fans (identity code specification "R" or
"Z").
Connect up the motor as per the wiring diagram for the controller, if it is
controlled by an electronic control unit (such as direct current motors by a
frequency converter).
Connect the motors as per the enclosed wiring diagram or the wiring dia‐
gram on the inside of the housing.
CAUTION!
Only operate stroke length actuators / control drives when
the pump is running!
Otherwise they will be damaged.
WARNING!
Danger of electric shock
In event of a defect, there is a risk of electric shock when
conductive feed chemical are used.
–
For safety reasons we recommend connecting to a pro‐
tective low voltage, e.g. in accordance with EN 60335-1
(SELV ).
CAUTION!
Danger resulting from unnoticed diaphragm rupture
If the pump has been ordered with an electric diaphragm rup‐
ture sensor, it must also be electrically installed.
–
Install the enclosed diaphragm rupture sensor electri‐
cally to a suitable monitoring device.
a) Diaphragm rupture sensor with switch contact
–
The cable can be connected as required.
b) Namur sensor, inherently safe
The monitor / power supply installed by the customer must be able to eval‐
uate the current variations of the Namur sensor for indicating a diaphragm
rupture!
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